Article of footwear



FIG. 1 is a front, left, perspective view showing our design;

FIG. 2 is a front plan view thereof;

FIG. 3 is a back plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The broken lines showing a sole and toe spreader are for illustrative purpose only and form no part of the claimed design. 

The ornamental design for an article of footwear, as shown and described. 